#include<bits/stdc++.h>
using namespace std;
int n,m,b[1001][1001],h,k,sx1,sy1,sx2,sy2;
int main(){
	cin>>n>>m>>k; 
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>h;
			b[i][j]=h+b[i-1][j]+b[i][j-1]-b[i-1][j-1];
		}
	}
	while(k--){
		scanf("%d%d%d%d",&sx1,&sy1,&sx2,&sy2);
		printf("%d\n",b[sx2][sy2]-b[sx1-1][sy2]-b[sx2][sy1-1]+b[sx1-1][sy1-1]);
	}
	return 0;
}

/**************************************************************
	Problem: 2061
	User: liujinhao
	Language: C++
	Result: Accepted
	Time:646 ms
	Memory:5992 kb
****************************************************************/